Synonyms for Lungen (same or very similar meaning)
WordNet sense 1 (tree of southeastern Asia to Australia grown primarily for its sweet edible fruit resembling litchi nuts; sometimes placed in genera Euphorbia or Nephelium):
longan, longanberry, Dimocarpus longan, Euphorbia litchi, Nephelium longanaFrom the ODE community, based on WordNetadd/edit